Condensed Consolidated Statements Of Comprehensive Loss - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues:
Revenues	$ 1,243	$ 1,615	$ 2,846	$ 3,423
Cost of revenues:
Cost of revenues	531	777	1,114	1,626
Gross profit	712	838	1,732	1,797
Operating expenses:
Research and development	1,297	1,655	2,700	3,334
Sales and marketing	464	1,012	1,030	1,969
General and administrative	796	820	1,537	1,884
Total operating expenses	2,557	3,487	5,267	7,187
Operating loss	(1,845)	(2,649)	(3,535)	(5,390)
Interest income, net	20	41	36	64
Other income (expense), net	(334)	236	(151)	368
Loss before provision for income taxes	(2,159)	(2,372)	(3,650)	(4,958)
(Provision) benefit for income taxes	(1)	10	(2)	(2)
Net loss	(2,160)	(2,362)	(3,652)	(4,960)
Other comprehensive (loss) gain, net of tax:
Foreign currency translation adjustment	259	(257)	77	(333)
Comprehensive loss	$ (1,901)	$ (2,619)	$ (3,575)	$ (5,293)
Net loss per share, basic and diluted:
Basic and diluted net loss per share	$ (0.43)	$ (0.48)	$ (0.73)	$ (1.00)
Shares used in computing:
Weighted average shares, basic and diluted	4,997	4,967	4,996	4,962
Software Licenses [Member]
Revenues:
Revenues	$ 619	$ 872	$ 1,544	$ 1,761
Cost of revenues:
Cost of revenues	44	45	77	98
Services [Member]
Revenues:
Revenues	624	743	1,302	1,662
Cost of revenues:
Cost of revenues	$ 487	$ 732	$ 1,037	$ 1,528